I'm trying to draw a ray diagram (the image & mirror are already printed I just need to draw the rays) for a plane mirror. I understand the rules for the most part but I am confused about what angle I should be drawing the first ray from the tip of the arrow to the mirror & the ray from the end of the arrow to the mirror.

Question

Thanks a bunch :)

Answer 1

just google

optics plane mirror

and select "images" and you will find lots of ray diagrams

Answer 2

Well that's the thing, I know what it looks like & they even went step by step in the lesson. I know that my reflected ray has to have the same angle to normal as my incident ray but I don't understand how I'm supposed to know what angle my incident ray is supposed to be at.

Thanks again! :)

Answer 3

I found a tutorial on youtube, he says just to do it to any point on the mirror unless otherwise specified. So I think I'm good :)

Thanks a bunch!